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Internet Graphics ServerApplication · Sap

CVE-2018-2437

CRITICAL · 9.1 CVSS v3.0 Published 2018-07-10
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
The SAP Internet Graphics Service (IGS), 7.20, 7.20EXT, 7.45, 7.49, 7.53, allows an attacker to externally trigger IGS command executions which can lead to: disclosure of information and malicious file insertion or modification.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

The SAP Internet Graphics Service (IGS) contains a command injection vulnerability allowing external attackers to trigger arbitrary command executions on affected systems. Versions 7.20, 7.20EXT, 7.45, 7.49, and 7.53 are vulnerable. Successful exploitation enables information disclosure and malicious file insertion/modification.

MitigationApply the relevant SAP security patch for CVE-2018-2437 immediately. If patching is delayed, restrict network exposure of IGS services and implement monitoring for suspicious command activity.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Internet Graphics ServerApplication
Affected:= 7.20= 7.20ext= 7.45= 7.49= 7.53

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify if SAP Internet Graphics Service (IGS) is installed
    Locate the IGS executable or service on the system. Common locations include the SAP instance directory structure under the SAP business suite or standalone IGS installation paths. Check running processes for igs or igs_exe processes.
    Affected if The IGS service or executable is found on the system.
  2. Determine the installed IGS version
    Use the SAP version checking mechanism appropriate for the installation, such as the SAPMMC snap-in, SAP IGS version information command, or check version metadata in the IGS installation directory. Compare the discovered version against the affected versions: 7.20, 7.20EXT, 7.45, 7.49, and 7.53.
    Affected if The installed version matches exactly 7.20, 7.20EXT, 7.45, 7.49, or 7.53.
  3. Verify if IGS HTTP service is exposed to network
    Check network listener configuration for IGS ports. IGS typically listens on HTTP ports (for example, port 8000 or configured SAP ports). Review firewall rules and SAP ICM/Internet Communication Manager configuration to determine if these ports are accessible from external networks.
    Affected if The IGS HTTP service port is reachable from untrusted network segments or the internet.
  4. Inspect for signs of command injection exploitation
    Review IGS server logs for anomalous command patterns, unexpected system calls, or evidence of arbitrary command execution. Check for unusual files created near IGS working directories or unexpected processes spawned from the IGS service account.
    Affected if Logs or system state show evidence of unauthorized command execution originating from IGS processes.

The environment is affected if SAP IGS is installed with version 7.20, 7.20EXT, 7.45, 7.49, or 7.53 and the IGS service is network-accessible.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply the relevant SAP security patch for CVE-2018-2437 immediately. If patching is delayed, restrict network exposure of IGS services and implement monitoring for suspicious command activity.

Recommended fix Moderate confidence

Upgrade to SAP IGS version 7.53 or later as specified in SAP Security Note 2574414

  1. 1. Identify the current SAP Internet Graphics Service (IGS) version running in your environment
  2. 2. Review SAP Security Note 2574414 (or most recent related note for CVE-2018-2437) on the SAP Support Portal
  3. 3. Download and apply the appropriate SAP IGS patch or upgrade to version 7.53 or later as specified in the SAP security note
  4. 4. After applying the patch/upgrade, verify the IGS version matches the fixed release
  5. 5. Restart the SAP Internet Graphics Service to ensure the patch takes effect
  6. 6. Test that normal IGS functionality works correctly after the upgrade
  7. 7. Monitor SAP security channels for any subsequent related security notes
Caveat Standard SAP upgrade considerations apply - test thoroughly in non-production first, review SAP Notes for any dependent components

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Internet Graphics Server Scoped from the published advisory
  • Consultation8.0 h
  • Implementation16.0 h
  • Testing12.0 h
  • Review / QA8.0 h
44.0 hours of engineering $7,720
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2018-2437 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data